NOTE: To ensure this system works safely and to its fullest potential, please read
this User’s Manual carefully before operation and keep for future reference.
AM-148
160-Watt Karaoke Mixing Amplier
User Manual
ank you for purchasing Acesonic AM-148 160-Watt Karaoke Mixing Amplier.
Acesonic takes pride in providing its customers with only the most advanced and highest quality
products on the market. With proper care and use your Acesonic product will provide you with
many years of enjoyment.
Table of Contents
Main Features ......................................................1
First ings First .................................................2
Front Panel Descriptions .....................................2
Rear Panel Descriptions ......................................3
System Specications ..........................................3
Remote Control Functions..................................4
Care & Maintenance...........................................4
Basic System Set-Up Diagram............................5
Troubleshooting ..................................................5
Safety Warnings & Cautions ...............................6
Main Features
• 160 + 160W@8Ω Max Power Output
• 4 Audio & Video Inputs
• 2 Microphone Inputs
• Audio Signal Processor
• Microphone Mixing Features:
Echo/ Delay/ Bass & Treble
Package Content
• 1 AM-148 Mixing Amplier
• 1 Remote Control
• Warranty Card
• User Manual
1
1. MICROPHONE MASTER VOL control - Adjusts
the overall volume output for all three microphone
channels
2. MUTE ON/OFF buttons
3. POWER ON/OFF button
4. DYNAMIC SOUND ON/OFF buttons
5. MICROPHONE ECHO control - Adjusts the echo
effect.
6. MICROPHONE DELAY control - Adjusts the echo
delay time.
7. MICROPHONE BASS control - Adjusts the low
audio frequency setting.
8. MICROPHONE TREBLE control - Adjusts the
audio high frequency setting.
9. MIC1 & MIC2 INPUT jacks - 1/4” inputs for
microphones.
10. INPUT SELECTION buttons - Sets the input
source selection to manual mode. Switch input
from DVD, TAPE, VCD,or AUX.
11. MUSIC BASS control - Adjusts the music’s low
frequency setting.
12. MUSIC TREBLE control - Adjusts the music’s
high frequency setting.
13. MUSIC BALANCE control - Distributes
music the left and right stereo channels.
14. MUSIC LOUDNESS ON/OFF buttons
15. AUX VIDEO INPUTS
16. AUX AUDIO INPUTS
17. MUSIC MASTER VOL control
18. INFORMATION DISPLAY WINDOW
Front Panel Descriptions
2
First Things First
Before operating your mixing amplier, there are a few
things you should do and know:
• Make sure your local power outlet supplies the
correct voltage for the AC adapter. Only use the
adapters supplied with the system.
• Do not run the outputs of any amplier channel back
into another channel input. Do not parallel or series
connect amplier.
• Before connecting your speakers to any amplier,
check your speaker’s specications.
• Turn o your audio system during set-up and turn
down volume.
Before connecting the power cord of your AM-145 to
a wall outlet,
BE SURE TO VERIFY THAT THE VOLTAGE
SELECT SWITCH ON THE BACK OF THE
UNIT IS SET CORRECTLY!
Voltage Selector
1. MIC 3 INPUT - 1/4” inputs for microphones.
2.VIDEO INPUTS - For VCD/ TAPE & DVD
channels
3. AUDIO INPUTS- For VCD/TAPE & DVD
channels
-Each columm consists of a complete set of AUDIO
LEFT & AUDIO RIGHT RCA inputs.
R-AUDIO RIGHT RCA input. Connect to the
audio right output from an external component.
L- AUDIO LEFT RCA input. Connect to the audio
left output from an external component.
4. AUDIO OUTPUTS
R-AUDIO RIGHT RCA output. Connect to the
audio right input on an external component.
L- AUDIO LEFT RCA output. Connect to the audio
left input on an external component.
5. VIDEO OUTPUTS - Connect to the video input of
an external component such as a TV or monitor.
6. AUDIO LINE OUTPUTS
7. SUBWOOFER LINE OUTPUTS
8. SPEAKER SYSTEM OUTPUTS -
Banana connector ports designed for use with
speaker wires or banana connectors.
9. AC POWER OUTPUT
10. AC 115/230V SELECT - Voltage selection switch.
Push the switch right for 115V, and left for 230V.
Please check your area for the correct voltage.
Rear Panel Descriptions
3
System Specications
1. DYNAMIC ON/OFF button
2. Manual Input Source Selection:
• VCD button - Selects external source connected
to the VCD INPUT.
• TAPE button - Selects external source connected
to the TAPE INPUT.
• AUX button - Selects external source connected
to the AUX INPUT.
• DVD button - Selects external source connected
to the DVD INPUT.
3. MIC VOL +/- button - Increase or decrease the
microphone volume.
4. MUSIC LOUDNESS ON/OFF button
5. MUSIC VOL +/- button - Increase or decrease the
music volume.
6. MUTE ON/OFF button
Care and Maintenance
• Please turn off the power switch before pulling off
the power cord or when selecting the input mode
switch.
• Turn off the power rst before unpulgging the
system.
• Start out by setting the volume to 0dB and gradually
increase it as needed.
• Please clean ventilation slots every 15 days.
Too much dust accumulation will overheat the
machine and result in the burning of the system.
• Always maintain a 1-2” of separation from walls or
adjacent objects to provide sufcient ventilation into
the machine.
Remote Control Functions
4
Basic System Set-Up Diagram
5
Troubleshooting
If you are having technical diculties operating the AM-148 Mixing Amplier, please check the trouble-
shooting list below to resolve any issues of incorrect operation. If you suspect an equipment malfunction and
are unable to resolve the problem, please contact your dealer or Acesonic USA Inc. at (626) 820-0645 or send
an e-mail to [email protected].
Problem Possible causes Solution
_________________________________________________________________________________________
• Check both the AC adapter connection
as well as the AC outlet connection.
• Make sure the voltage selector switch is
on the correct local power voltage setting.
• AC power adapter cord is incorrectly
attached or not plugged into outlet
• Voltage selector switch on wrong
voltage
Will not turn on
Buzzing sound from
amplier
_________________________________________________________________________________________
Connection specs:
• ¼” audio inputs
• RCA cables
• Speaker wires
Safety, warnings and cautions
Mises en garde, precautions et procedures de sûreté
e lightning-with-arrowhead symbol inside
a triangle alerts the user that potentially
dangerous voltage in the product enclosure
may constitute a risk of electric shock.
e exclamation point within a triangle
alerts the user to important operating,
maintenance, and servicing information in
this User Manual.
CAUTION
To reduce the risk of electrical shocks, re, and
possible injuries, you should not
• remove screws, buttons, antennae, jacks, or any part
of the enclosure; or
• expose the product to rain or moisture.
• Poor or incorrect input connection
from audio source unit, or bad/
defective cables, wires or connectors
• Microphone controls are turned down
• Poor or incorrect input connection
from microphone, or bad/defective
cables, wires or connectors.
• Microphone feedback
• Battery power is low or placed
incorrectly
• Remote is out of range or
Line-of-Sight is obstructed
• Double check all input connections from
audio source units. Try using another set of
cables/cords. Make sure to turn POWER
OFF before reconnecting cables.
• Check MIC MASTER VOL and all
MIC VOL controls to see if they are
turned down. If so, turn the knob slowly
clockwise.
• Double check all microphone connec-
tions. Try using another cable/cord. Make
sure to turn MIC MASTER VOL down
before reconnecting cables.
• Place microphones further away from
speakers. Face microphones away from
speakers.
• Replace batteries or double check battery
placement
• Move closer to the AM-148 or make sure
view to the machine is unobstructed.
• Incorrect input source selected
• MUSIC VOL control is turned
down
• Poor or incorrect output connection
to speakers or other external units, or
bad/defective cables, wires or
connectors
• Check to make sure the correct correspond-
ing button is pressed on the input selector in
relation to your audio source.
• Check to see if MUSIC VOL control is
all the way down. If so, turn the knob slowly
clockwise.
• Double check all output connections to
speakers or other units. Try using another set
of cables/cords. Make sure to turn POWER
OFF before reconnecting cables.
No audio can be heard,
audio signal meter
SHOWS signal
No audio can be heard,
audio signal meter
DOES NOT show
signal
_________________________________________________________________________________________
_________________________________________________________________________________________
_________________________________________________________________________________________
No microphone signal
can be heard
Unpleasant howling
and screeching heard
from speakers
Remote control not
functioning
_________________________________________________________________________________________
_________________________________________________________________________________________
6
Problem Possible causes Solution
FOR CANADA/POUR LE CANADA
Caution: To prevent electric shock, match the wide
blade of the plug to the wide slot, and fully insert.
Attention: Pour eviter les chocs electriques, introduire la
lame la plus large de la che dans la borne correspondante
de la prise et pousser jusquau fond.
is product does not exceed the Class B limits for
radio noise emissions from digital devices as set out
in the Canadian standard for interference-causing
equipment (“Digital Apparatus, ICES-003” from the
Department of Communications).
Cet appareil numerique respecte les limites de bruits
radio electriques applicables aux appareils numeriques de
Classe B prescrites dans la normesur le materiel brouilleur
(“Appareils Numeriques, NMB-003” edictee par le
Ministre des Communications).
Important safety instructions
1. Read and follow these instructions, keep them
handy for reference, familiarize yourself with the
product’s operation, and heed all safety warnings.
2. Do not use this product near water, on wet surfaces,
or in places where moisture may accumulate. Do not
expose the device to dripping or splashing, and do
not place items lled with liquids – such as vases,
beverages, etc. – on top of the device. Clean only with
a dry cloth.
3. Do not block any ventilation openings or set device
on carpets or rugs. Maintain sucient room on all
sides for airow.
5. Do not defeat the safety purpose of a polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other, while a grounding-type
plug has two blades and one prong. e wide blade
and the prong are safety features. If the provided plug
does not t into your outlet, consult an electrician for
replacement of the obsolete outlet.
6. Protect the power cord from being walked on or
pinched, particularly where it is plugged in to an
electrical socket and the point where it exits from the
rear of the device.
7. Only use the attachments and accessories specied
by the manufacturer.
8. Use only with a cart, stand, tripod, bracket or table
specied by the manufacturer or sold with the device.
When using a cart, use caution when moving the cart.
9. Unplug the product during lightning storms or
when it will not be used for long periods of time.
10. Refer all servicing to qualied service personnel.
Servicing is required when the unit has been damaged
7
AM-148
160-Watt Karaoke Mixing Amplier
One (1) Year Manufacturer Warranty
Lifetime Technical Support
Designed in U.S.A.
Technical Support:
Call: 626.820.0645
Email: techsupport@acesonic.com
Website: www.acesonic.com
Acesonic USA, Inc.
161 S. 8
th
Avenue
City of Industry
CA 91746-3208
U.S.A.
© 2015 Acesonic USA, Inc. • All rights reserved
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